Ender 3/v2 Feet Riser 20mm

The part itself is 20mm but keep in mind the rubber feet adds a few millimeters.

Slicing
Print so the V-Slot mount is facing up, bridging will be fine because it's so small.
No support needed. (overhang should print well.)
Preping
The original rubber pad can be ripped carefully.
Don't clean up the glue off the feet so it sticks even better.
Installation
To install it use a small rocking motion to slide the rail in.